Tool for turning regular forms.



Patented Sept. l8, I900.

E. A. HAVENS. TOOL FOR TURNING REGULAR FORMS.

(Application filed Nov. 13, 1899.)

(No Model.)

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No. 658,009. Patented Sept. [8, I900. E. A. HAVEVNS. TOOL FOR TURNINGREGULAR FORMS.

- (Applicatiun filed Nov. 13, 1899.; (No Model.) 2 Shee'ts-Sheet 2.

mun n g I!" p F .18. g 1 i5 NVENTBR 13 @rnui a. Mammy UNITED, STATESPATENT O FICE.

ERNEST A. H-AVENS, OF PEORIA, ILLINOIS TOOL FOR TURNING REGULAR FORMS.

SPECIFICATION formingpart of Letters Patent No. 658,009, dated September18, 1900. Application filed November 13. 1899. Serial No. 736,790. (Nomodel.)

' To aZZ whom it may concern:

Be it known that I, ERNEST A. HAVENS, a citizen of the UnitedStates,residing at Peoria, in the county of Peoria and State ofIllinois, have invented certain new and useful Improvements in Tools forTurning Regular Forms; and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enableothers skilled in the art to which it appertains to make and use thesame.

This invention pertains to a hand-tool for turning regular forms. Theobject of such invention is to furnish an implement for quickly andperfectly turning rods of various lengthssu'ch,forinstance, ascurtain-rods, towel-rollers, and the like from wood or other likematerial. I am aware of nothing that will accomplish this purpose asquickly and as perfectly as the one that I am to describe, nor indeed amI aware of an implement that will perform this work at all. Heretoforeit has been customaryto form these rods in a lathe. This process is slowand unsatisfactory to say the least.

The advantages of my device will be readily understood by a study of theappended drawings, in which- Figure l is a plan View of the back of myimproved tool. Fig. 2 is a cross-section of the tool through line a; 00,Fig. 1. Fig. 3 is a View of the front face of the tool. Fig. 4 is across-section of a forming-block shown in Figs. land 2. Fig.5 is a planview of the inside face of a covering-plate or base, showing a post madetherewith for carrying a knife. Fig. 6 is a cross-section of a portionof the block shown in Fig. 4, indicating the position of a knife inconnection therewith. Fig. 7 is an elevation of a portion of Fig. 5,showing the knife. Fig. 8 is a portion of the tool in perspective,showing the relative position of the parts. Fig. 9 is an exterior viewof the knife. Fig. 10 is an inner view of the same. Fig. 11 is a view ofa portion of a lathe and tool-holder having my invention mountedtherein. Fig. 12 is a plan view of the same.

In the drawings letters of reference correspond with those of thespecification.

A is a supporting-plate having an annular rim B at its outer edge and acentral post or wrist 0, having a shoulder at D, formed by theenlargement D. is a recess E and F, respectively, for permitting thepassage of the turnings therei hrough. Upon the plate, within theannular rim B, is seated a block G of peculiar form, having a In saidplate and base series of openings H of varying diameters perpendicularto the plane of the plate A. The inner adjacent peripheries of theopenthe. post 0, and the'centers thereof are consequently arranged in aspiral form. The

purpose of this arrangement will appear presently. In the top of theblock is a recess .1 for receivinga washer J, while thebody of saidblock is bored out at K to receive the,

ings are concentric with the circular form of direction of its length,which by reason of its form must be a movement about the post andconcentric therewith. The bore .L of the block G is of sufficient sizeto permit the entrance of the shoulder D, as before stated,

and permits the revolution of the same within it. Said bore,furthermore,intersects each of openings H, which appear as in Fig. 4.This is clearly shown in Figs. 3, 6, and 8. In Fig. 3 the edge of knifeis shown just touching the periphery of the circle described by the saidopenings. The cap-screw M passes through the washer J into the post 0 atthe top, as before stated, and binds the block G and plate A firmlytogether when set for use. The openings are flared at their bottoms, as

shown in Figs. 2 and 4, whereby the edge of 1 the knife protrudes withinthe opening and quickly removes the rough exterior of the work inserted,but gradually disappears un-' til its inner end is 'just on the circle.The

outer projecting end, which is curved, will 1 first cut through therougher portion of the 4 wood and the inner end will give thefinishing-cut. Any one of the openings may be brought around to theknife, and a rod of the size corresponding to that opening will be screwpassing through the washer into the formed.

In using the device astick of wood of irregular form is chucked in alathe or other similar machine and the device is placed against the freeend thereof, whereby said stick is made to enter the opening beside theknife. 1

By forcing the tool along the stick the latter will be quickly andsmoothly formed. The apparatus may be clamped in a vise or similar tooland the stick may beinserted and held in a common carpenters brace anddriven thereby. In Figs. 11 and 12 I show my invention supported in asuitable carrier on the lathe,said carrier having suitable adjustment,whereby the opening for the stick being turned may be broughtin linewith the lathecenters. This portion, however, I lay no claim to, butmerely illustrate it to show an effective manner of performing the work.

As the knife becomes shortened by wear and grinding it may be quicklyadjusted by the means provided.

Other means of fixing the block G to the plate A may of course be used.I have shown one method of accomplishing this purpose.

The device may be otherwise altered without departing from the spirit ofmy invention, the aim and desire of which are'to furnish a tool having aseries of varioussized holes so arranged that any one of the said holesmay be brought into position with reference to the knife for the purposeof turning a stick of regular form, the length of such stick beinglimited only by the lathe carrying it or the length of the wood itself.

Having thus described my invention, what I claim as new,and desire tosecure by Letters Patent, is-

1. In a tool for turning regular forms of varying lengths, a revolubleblock having a series of bores of varying size therein whose lnnerperipheries touch a circle struck from the center of such block, and asuitable base or support carrying a knife adapted to register with eachof the said holes.

2. In a tool for turning regular forms, a

suitable block having a series of varioussized openings therethrough,.the centers of which are arranged in a spiral form, the innerperipheries touching a circle struck from the circle of said block, abase or support for 1 a circle, said openings being flared at theirlower ends, a base or support on the block having a flaring annular rimat its outer edge 1 for receiving the said block, a central verticalpost or wrist for the said base, a central recess in the block forreceiving the said post,

a washer resting on the block and a suitable post for locking the baseand the block together, and a knife adjustably secured on the post andadapted to register with the openings aseach is brought in line with itfor the purpose described.

4. In a tool for turning regular forms, a block having a series ofopenings of varying diameter, a central bore intersecting each of theseveral openings, a base or support for the block, a central verticalpost for such base, a knife adjustably attached to the post and adaptedto extend within the said openings formed by the intersection of thecentral bore and the openings H, for the purposes set forth.

5. In a tool for turning regular forms, a base, or support having avertical post thereon, a knife secured to the post, a recess through thebase and the post, a block havin g a central bore adapted to receive thesaid post whereby such block may revolve thereon, means for locking theblock and the base together, and a series of openings of varying,

diameters bored through the block parallel to said post and adapted oneby one to register with the knife for the purposes herein set forth anddescribed.

6. In a tool for turning regular forms, a block having a series ofopenings or bores therethrough arranged on a circle, each of saidopenings having a recess therein on that circle and a stationary knifeadapted to enter each of the holes by a revolution of the i said block,all for purposes set forth.

7. In a tool for turning regular forms, a revoluble block mounted on abase or support, a series of holes of varying size in the block, acentral bore therethrough for receiving a post on the said base and uponwhich it revolves, a second larger bore adapted to intersect the saidholes whereby apertures are formed in each of the openings H toward thepivot of the block and a knife secured to the said base, or support andadapted to enter each of the apertures whereby the work when entered inthe openings containing the knife will be rounded, when revolved againstthe knife, or the knife revolved against the work as set forth.

8. In a tool for turning regular forms, a block having a series of holestherein, a central bore intersecting each of the holes and a knifelocated within the bore and adapted to have each of the said series ofbores revolve past it, whereby any one thereof may be set opposite suchknife for the purposes set forth.

9. In a tool for turning regular forms, a block G having bores oropenings H flared at their lower ends, the base A having the centralpost 0, a knife D secured to the latter, connterbores K and L, theformer for receiv-- ing said post 0, the latter intersecting and openinginto the bores H and adapted to permit the revolution of said blockabout the knife for the purposes set forth and means for rigidlysecuring the base and block to- 11. In a tool for turning regular forms,a v

revoluble block having a series of bores parallel with the axis of saidblock, said bores arranged in a circle wirith their peripheriesequidistant from the said axis of the block 15 and a knife locatedWithin the circle 'described by the revolution of the bores, said knifeadapted to intersect the periphery of each here as set forth.

In testimony whereof I affix my signature 20 in presence of twowitnesses.

v ERNEST A. HAVENS.

Witnesses:

O. J oH NsoN, A. KEITHLEY.

